Scalping / Pre-Trade Fee Calculator

Editable fee engine for shares and crypto, with buy-side cost, sell-side cost, margin interest per day, break-even sell price, and net profitability.

Trade Setup

Market

Currency

Ticker / Coin

Units (Shares / Coins)

Buy Price

Sell Price / Target

Holding Days

Include Buy Fees Include Sell Fees

Stock Fees

Commission %

Commission Fixed

Platform %

Platform Fixed

Platform Min

Platform Cap

Regulatory / Exchange %

Regulatory / Exchange Fixed

Sell-only Extra %

Sell-only Extra Fixed

Margin

Use Margin

Margin is off. Turn it on only when you want interest cost included.

Buy Value

$100.00

Sell Value

$105.00

Total Buy Fees

$0.99

Total Sell Fees

$0.99

Margin Interest

$0.00

Gross P&L

$5.00

Net P&L

$3.02

ROI on Capital Used

3.02%

Break-even

Metric	Value
Break-even Sell Price	$1.02
Required Move from Buy	1.9800%
Borrowed Amount	$0.00
Total Cost Basis incl. Fees + Interest	$100.99

Fee Breakdown

Item	Buy	Sell
Commission	$0.00	$0.00
Platform Fee	$0.99	$0.99
Regulatory / Exchange	$0.00	$0.00
Crypto Total Fee	$0.00	$0.00
Sell-only Extra	$0.00	$0.00
Total	$0.99	$0.99

Formula Logic

Line	Formula
Buy Value	qty × buy_price
Sell Value	qty × sell_price
Margin Interest	borrowed_amount × annual_rate × holding_days / 365
Gross P&L	sell_value - buy_value
Net P&L	gross_pnl - buy_fees - sell_fees - margin_interest

This page is intentionally manual and editable. Crypto now supports a proper minimum platform fee, so small crypto trades will not be undercharged. The settings area also rotates by market type, and margin sits in its own section to keep the form cleaner.